SPGM™ DOC Technology

New patented proprietary technology to reduce the use of platinum group metals in diesel oxidation catalysts.

A diesel oxidation catalyst, or DOC, is a device that utilizes a chemical process in order to break
down pollutants from a diesel engine in the exhaust stream, turning them into less harmful
components, similar to an automobile's catalytic converter. In addition, the DOC enables critical
functions of downstream components in an aftertreatment system such as the diesel particulate
filter, or DPF, for particulate matter control and selective catalytic reduction, or SCR, catalyst for
oxides of nitrogen, or NOx, control. DOCs are normally honeycomb-shaped configurations
coated in a catalyst designed to trigger chemical reactions to reduce gaseous emissions and
particulate matter.

Initial benchmarking of our new synergized-platinum group metal DOC, or SPGM™ DOC,
technology shows a dramatic reduction in the amount of platinum group metal, or PGM, required
in the manufacture of DOCs for light and heavy duty diesel engine applications when compared
to a leading original equipment manufacturer, or OEM, catalyst product. This unique patented
mixed-metal oxide chemical structure utilizes low-cost metals to synergize the activity of a small
amount of PGM and allows the DOC to perform at a level equal to or above a conventional DOC
that uses much higher PGM loadings.

We are experts in emission control, as evidenced by our existing family of catalytic coatings
featuring our MPC® technology and the process by which they are applied for customers such as
Honda. Our manufacturing techniques surrounding the use of mixed-metal oxide compounds, are
the result of the development and application of advanced material science by our world-class
research and development team.

SPGM™ DOC technology is also expected to be a part of our powder-to-coat strategy. We are
able to coat DOCs at our Oxnard, California factory and expect to provide our SPGM™ DOC
technology in powder form, enabling other coaters across the globe to access this unique
proprietary technology.

Our SPGM™ DOC technology has been tested on-road, at an industry-known testing facility on
engine dynamometers and at an emission control systems supplier’s facility. Click here to review the initial testing results.